Finding the Fourth Proportional to 1,456.31, 2,175.60 and 932.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.31 : 2,175.60 = 932.12 : x
2. Step 2: Convert to fraction form
   1,456.31/2,175.60 = 932.12/x
3. Step 3: Cross multiply
   1,456.31x = 2,175.60 × 932.12
4. Step 4: Simplify right side
   1,456.31x = 2,027,920.27
5. Step 5: Solve for x
   x = 2,027,920.27/1,456.31
6. Step 6: Final answer
   x = 1,392.51